Hello!
Gary and others,
I'm sorry if I'm asking you about an often-asked question or a
well-known non-supported feature, but I just would like small
clarification on M4's capabilities. I couldn't find any information
about this in either M4's manual or on google.
Do M4 support conditional blocks, like #ifdef, #else #endif etc? This
seems to me as the minimum level of support wanted from any
preprocessor, but what I understand of the M4 manual, this can only be
done on a line level (ifdef(...)). Am I correct or can you use
conditional blocks in your code when preprocessing with M4?
Thanks in advance and best regards,
/Jakob
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